http://www.niapublications.org/agepages/hyperther.asp
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National Institute on Aging Information Center
Almost every summer there is a deadly heat wave in some part of the country. Too much heat is not safe for anyone. It is even riskier if you are older or if you have health problems. It is important to get relief from the heat quickly. If not, you might begin to feel confused or faint. Your heart could become stressed, and sometimes this causes death.